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#ifndef _COMMON_H
#define _COMMON_H
#include <string.h>
#include <stdio.h>
#include <assert.h>
#include <math.h>
struct vec3d {
double x;
double y;
double z;
};
static int vec3d_parse(char *in, struct vec3d *out)
{
int i = 0;
char *p = strtok(in, ",");
while (p != NULL)
{
double *ptr;
switch (i ++)
{
case 0:
ptr = &out->x;
break;
case 1:
ptr = &out->y;
break;
case 2:
ptr = &out->z;
break;
default:
assert(0);
break;
}
sscanf(p, "%lf", ptr);
p = strtok(NULL, ",");
}
if (i != 3)
{
fprintf(stderr, "Invalid Vec3D: %s. Example: -1,1,1.\n", in);
return 64;
}
return 0;
}
#endif /* _COMMON_H */
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